Home / 87,856.47-121,237.11-51,553.01

Finding the Fourth Proportional to 87,856.47, 121,237.11 and 51,553.01

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Solution

The fourth proportional to 87,856.47, 121,237.11 and 51,553.01 is: 71,140.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,856.47 : 121,237.11 = 51,553.01 : x
  2. Step 2: Convert to fraction form
    87,856.47/121,237.11 = 51,553.01/x
  3. Step 3: Cross multiply
    87,856.47x = 121,237.11 × 51,553.01
  4. Step 4: Simplify right side
    87,856.47x = 6,250,137,338.02
  5. Step 5: Solve for x
    x = 6,250,137,338.02/87,856.47
  6. Step 6: Final answer
    x = 71,140.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.